After you have completed the wiring (according to diagrams detailed later in this ocument) you must do some basic configuration of your ACCEL 3-Stage Rev-limiter.. The staging control RPM limiter is triggered by applying 12 volts to the ORANGE WIRE. Connect the ORANGE WIRE to 12-volt/line-lock, trans-brake or manual/toggle switches.
NOTE: Mount the Mallory Fuel Injection/Tach Adapter away from hot engine components and moving parts, such as fan belts and linkages. Mount the unit under the hood or in the passenger compartment using the two sheet metal screws provided.. View and Download Mallory HYFIRE IV SERIES installation instructions manual online. ELECTRONIC IGNITION CONTROLS. HYFIRE IV SERIES control unit pdf manual download. Also for: Hyfire iva, Hyfire ivc.